Wednesday, March 24, 2010

How to Know How Much Sleep You Need: "Do you feel drowsy? Can't stop yawning? Maybe you're not getting as much sleep as you should. Or perhaps you overslept--there is such a thing, and it's not good for you, either![1] How much sleep you actually need depends on your age, activity level, and even genetics. This article will help you figure it out with a test."